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[Bug target/41900] call *%esp shouldn't be generated because of CPU errata
- From: "uros at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 4 Nov 2009 14:15:07 -0000
- Subject: [Bug target/41900] call *%esp shouldn't be generated because of CPU errata
- References: <bug-41900-1600@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from uros at gcc dot gnu dot org 2009-11-04 14:15 -------
Subject: Bug 41900
Author: uros
Date: Wed Nov 4 14:14:49 2009
New Revision: 153896
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=153896
Log:
PR target/41900
* config/i386/i386.h (ix86_arch_indices) <X86_ARCH_CALL_ESP>: New.
(TARGET_CALL_ESP): New define.
* config/i386/i386.c (initial_ix86_tune_features): Initialize
X86_ARCH_CALL_ESP.
* config/i386/i386.md
(*call_pop_1_esp, *call_1_esp, *call_value_pop_1_esp,
*call_value_1_esp): Rename from *call_pop_1, *call_1,
*call_value_pop_1 and *call_value_1. Depend on TARGET_CALL_ESP.
(*call_pop_1, *call_1, *call_value_pop_1, *call_value_1):
New patterns, use "lsm" as operand 1 constraint.
* config/i386/predicates.md (call_insn_operand): Depend on
index_register_operand for !TARGET_CALL_ESP to avoid %esp register.
testsuite/ChangeLog:
PR target/41900
* gcc.target/i386/pr41900.c: New test.
Added:
branches/gcc-4_4-branch/gcc/testsuite/gcc.target/i386/pr41900.c
Modified:
branches/gcc-4_4-branch/gcc/ChangeLog
branches/gcc-4_4-branch/gcc/config/i386/i386.c
branches/gcc-4_4-branch/gcc/config/i386/i386.h
branches/gcc-4_4-branch/gcc/config/i386/i386.md
branches/gcc-4_4-branch/gcc/config/i386/predicates.md
branches/gcc-4_4-branch/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41900